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The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.

An in vivo Assay to Test Blood Vessel Permeability

Open access
Radu, Maria, Chernoff, Jonathan·2013·Journal of Visualized Experiments

Abstract

This method is based on the intravenous injection of Evans Blue in mice as the test animal model. Evans blue is a dye that binds albumin. Under physiologic conditions the endothelium is impermeable to albumin, so Evans blue bound albumin remains restricted within blood vessels. In pathologic conditions that promote increased vascular permeability endothelial cells partially lose their close contacts and the endothelium becomes permeable to small proteins such as albumin. This condition allows for extravasation of Evans Blue in tissues. A healthy endothelium prevents extravasation of the dye in the neighboring vascularized tissues. Organs with increased permeability will show significantly increased blue coloration compared to organs with intact endothelium. The level of vascular permeability can be assessed by simple visualization or by quantitative measurement of the dye incorporated per milligram of tissue of control versus experimental animal/tissue. Two powerful aspects of this assay are its simplicity and quantitative characteristics. Evans Blue dye can be extracted from tissues by incubating a specific amount of tissue in formamide. Evans Blue absorbance maximum is at 620 nm and absorbance minimum is at 740 nm. By using a standard curve for Evans Blue, optical density measurements can be converted into milligram dye captured per milligram of tissue. Statistical analysis should be used to assess significant differences in vascular permeability.

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Metadata

Authors
Radu, M., & Chernoff, J.
Venue
Journal of Visualized Experiments
Published
2013-03-16
Issue
73
Pages
e50062-e50062
ISSN
1940-087X (ISSN-L)
OpenAlex
W2043803772
Cited by
320
References
11
FWCI
5.94
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: An in vivo Assay to Test Blood Vessel Permeability. https://app.cochat.ai/papers/10.3791/50062
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Radu, M., & Chernoff, J. (2013). An in vivo Assay to Test Blood Vessel Permeability. Journal of Visualized Experiments. https://doi.org/10.3791/50062

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